I believe that number 6 is actually a result of the global flood mentioned in Genesis not "millions of years of erosion". There's more evidence for a young earth and a global flood.
Tunnel of Love - Ukraine / 13 Enchanting Tree Tunnels You Need To Walk Through
Sssshhh! You're going to fall in love with the otherworldly Jacob's Well, Texas. Click for USA's best kept secrets... #spon #adventure
12 Most Dark And Mysterious Places On Earth - dezdemonexoticplaces.
"Waterfall Castle, The Enchanted Wood, Poland". Plitvice waterfalls, in Croatia, and a castle inserted.
Ireland's mysterious tree tunnel called The Dark Hedges Ballymoney Northen Ireland
Quinta da Regaleira: Initiation Wells-- inverted towers with stairs used for tarot initiation rites.
Dark And Mysterious Places On Earth:Living Root Bridge, Meghalaya, India