Raven’s Tower (Sitka spruce)
Raven’s Tower is a very tall Sitka spruce (Picea sitchensis), 96.7 m tall.
Doerner Fir
The tallest coast Douglas fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) in the world. Height 99.8 m, diameter 3.54 m, volume 237 m3. Some time ago it was 100.3 m tall.
90 m tall yellow meranti tree, Maliau Basin
Tallest known tree of this species (Shorea faguetiana Heim.), 89.5 m tall.
The 94.1 m tall Shorea faguetiana in Danum Valley
One of the tallest known trees in tropics, (Shorea spp.), 94.1 m tall.
Tallest Giant Sequoia in Redwood Mountain Grove
A very tall giant sequoia (Sequoiadendron giganteum), 94.9 m tall.
Tallest Giant Sequoia in Converse Basin
Tallest giant sequoia (Sequoiadendron giganteum (Lindl.)), 95.8 m high.
Dragon Hole
World’s deepest known undersea sinkhole, 300.89 m deep.
Huanglong Valley
Possibly the largest travertine terraces in the world, they extend for 3.6 kilometers and are deposited by mildly thermal springs.
Naica Cave of the Crystals
Cave with giant selenite crystals up to 12 meters long and 55 tons heavy. The air temperature in the cave is up to 58 °C high. Now flooded.
Hisarya walled Roman town
The best preserved Roman city walls in Bulgaria, some 2.3 km long. Hisarya was founded in prehistoric times and flourished in Roman times as a resort thanks to mineral springs. Site contains ruins of many public buildings including a small amphitheater and some ancient churches.
