These are some of the most beautiful and unique looking plants on the planet.

Aeonium
Agave
Aloe
Caudiciforms and Bulbs
Crassula
Crests and Monstrose
Cotyledon
Echeveria
Euphorbia
Haworthia and Gasteria
Jade Plant
Kalanchoe
Mimicry Plants (Including Lithop, Conophytum, Fenestraria, etc.)
Mosaics, Wreaths and Kissing Balls
Sempervivum
Senecio
Stapeliad