Went viral18:3630 Hidden Underground Cities in America
2.8M viewsfrom a 62.1K subscriber channel
62.1K-subscriber channel · This video earned ~$16.1Kest.$7.3K to $24.9K
YouTube niche
How much do City Hidden Facts and Secrets YouTube channels make?
Small City Hidden Facts and Secrets channels are getting videos with 5.8M views and earning real money from YouTube ads.
Channels in this niche typically earn $951 to $3.3K total from all their videos, based on 439 videos and 25 channels we analyzed.
Part of Travel & Architecture
Make a City Hidden Facts and Secrets video
Channels studied
25
439 videos tracked
Highest earner (all time)
~$475.4K est.
$214.7K to $736.1K total
Best single video earned
~$21.9K est.
$9.9K to $33.8K per video
Most-viewed video
5.8M views
from a 392K subscriber channel
Earnings breakdown
Distribution stats from 439 videos and 25 channels analyzed.
Average channel total
$951 to $3.3K
Estimated all-time total per channel
Top 25% of channels earn
$904 to $3.1K
Better-performing channels (all time)
Top 10% of channels earn
$3.2K to $10.8K
Highest-performing channels (all time)
Average per video
$256 to $878
Typical single-video earnings
Average views per video
73.2K
May be higher due to viral hits
Top 25% of videos get
42.3K
Views on better-performing videos
Top 10% of videos get
190.6K
Views on the biggest videos
If you post 2 videos a month
$512 to $1.8K
At this niche's typical per-video earnings
How often creators post
new video every 2.3 weeks
Average for channels in this niche
Is this niche growing?
Views are declining
Based on recent videos in this niche
Explore this niche
Browse Travel & Architecture YouTube niches, compare earnings across the Niche Finder analytics hub, or review the top channels below. We track 25 channels in City Hidden Facts and Secrets; this page highlights the highest-view examples.
25 total City Hidden Facts and Secrets YouTube channels tracked
Breakout videos
Videos that pulled in far more views than their channels had subscribers.
Went viral18:36
Went viral22:51What's hiding under San Diego? San Diego’s Forbidden Underworld
1.2M viewsfrom a 65.3K subscriber channel
65.3K-subscriber channel · This video earned ~$9Kest.$4.1K to $13.9K
Went viral21:1627 HIDDEN Underground Cities You Won't Believe Exist
1.1M viewsfrom a 62.1K subscriber channel
62.1K-subscriber channel · This video earned ~$6.7Kest.$3K to $10.3K
Went viral28:0024 Hidden Underground Cities in America | Part 2
757.6K viewsfrom a 62.1K subscriber channel
62.1K-subscriber channel · This video earned ~$4.4Kest.$2K to $6.8K
Went viral22:29What’s Hiding Under Los Angeles Streets?
517.9K viewsfrom a 65.3K subscriber channel
65.3K-subscriber channel · This video earned ~$4Kest.$1.8K to $6.2K
Went viral16:44Seattle Was Raised 22 Feet in 1907 — The Original City Is Still Underneath
375.3K viewsfrom a 4.6K subscriber channel
Videos like these are AI-made today. NoodleTomato writes, voices, and renders a City Hidden Facts and Secrets video for you in minutes.
Make a similar videoWhy this niche works
Top City Hidden Facts and Secrets videos usually run about 21 to 37 minutes and earn an estimated $256 to $878 per video, which works out to $512 to $1.8K a month if you post at this niche's typical pace of 2 videos a month. The best ones below pulled in far more views than their channels had subscribers, the clearest sign a brand new channel can still land a hit here.
The strongest recent example is “30 Hidden Underground Cities in America”, which reached 2.8M views from a 62.1K subscriber channel. Channels in Travel & Architecture often post about new video every 2.3 weeks, so consistency matters as much as one viral upload.
Videos are usually 21 to 37 minBased on 25 channels
Typical City Hidden Facts and Secrets video: 29 min · ~73.2K views per upload (niche average).
Compare with similar niches
See how City Hidden Facts and Secrets stacks up against nearby opportunities.
Similar niches
Topics with overlapping audience and content patterns.
| Niche | Category | Avg. channel total (est.) |
|---|---|---|
| This niche | Current page | $951 to $3.3K est. |
| Hidden Travel Destinations 4K | Travel & Architecture | $558 to $1.9K est. |
| NYC Walking Tours | Travel & Architecture | $353 to $1.2K est. |
| Abandoned Places Exploration | Travel & Architecture | $468 to $1.6K est. |
| Cities Then and Now | Travel & Architecture | $791 to $2.7K est. |
| Forbidden History Mysteries | Science & Nature | $486 to $1.3K est. |
| US State Fun Facts | Geopolitics & Economics | $914 to $2.4K est. |
| City Walking Tours 4K | Travel & Architecture | $147 to $503 est. |
| Sealed Tombs and Cave Discoveries | Science & Nature | $672 to $1.8K est. |
Compared with adjacent niches
Related opportunities in neighboring categories.
| Niche | Category | Avg. channel total (est.) |
|---|---|---|
| This niche | Current page | $951 to $3.3K est. |
| Forbidden History Mysteries | Science & Nature | $486 to $1.3K est. |
| US State Fun Facts | Geopolitics & Economics | $914 to $2.4K est. |
| Sealed Tombs and Cave Discoveries | Science & Nature | $672 to $1.8K est. |
| Hidden Car Features and Hacks | Cars & Motorsport | $1.3K to $3.8K est. |
| Abandoned Towns and Ghost Towns | Geopolitics & Economics | $496 to $1.3K est. |
| Minecraft Secrets and Easter Eggs | Minecraft | $840 to $3.4K est. |
| NFL Deep Dives and Odd Facts | Sports | $39 to $117 est. |
| Mysterious Archaeological Discoveries | Science & Nature | $476 to $1.3K est. |
How the numbers work
How earnings are estimated, what is public, and when this page was last updated.
- Last updated
- Jun 11, 2026
- Data source
- Public YouTube discovery
- Built from publicly available channels and videos matched to this niche.
- Confidence
- Confidence is highest when a niche has many long-form breakout videos with known subscriber counts. Percentile ranges are precomputed from the analyzed sample; thin niches may show wider ranges or missing percentiles.
- We take a video's public view count and estimate how much ad revenue it earned, using a typical pay-per-view rate for this niche. The result is a range (low to high).
- A channel's total estimated earnings are the sum of all its individual video estimates, across the channel's entire history.
- These estimates assume all views earned ad revenue. In reality many channels have not turned on ads, so real earnings are usually lower.
- Actual earnings depend on the creator's monetization status, audience location, ad formats, sponsorships, and more.
- Verified data comes from visible YouTube channel pages and video listings. Estimated data is filled in from related channels when direct info was not available.
- Data is independently sourced from public information. NoodleTomato is not affiliated with or endorsed by YouTube.
Read the full methodology on the Niche Finder methodology page.
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YouTube shares ad revenue with creators who monetize their channels. Estimated earnings are calculated independently by NoodleTomato from public view data and estimated rate ranges. They are not actual earnings, are not from YouTube, and may not reflect real revenue. Data independently sourced. Not affiliated with or endorsed by YouTube.
How we estimate ·